<template>
  <div class="goods-relevant">
    <div class="header">
      <i class="icon" />
      <span class="title">{{ goodsId ? "同类商品推荐" : "猜你喜欢" }}</span>
    </div>
    <!-- 此处使用改造后的xtx-carousel.vue -->
    <XtxCarousel :sliders="sliders" style="height:380px" auto-play />
  </div>
</template>

<script>
import { findRelevantGoods } from '@/api/goods.js/product'
import { reactive } from 'vue'
export default {
  // 同类推荐，猜你喜欢
  name: 'GoodsRelevant',
  props: {
    goodsId: {
      type: String
    }
  },
  setup (props) {
    const sliders = reactive([])
    findRelevantGoods({ id: props.goodsId }).then(({ result }) => {
      // 0,1,2,3     result.slice(0, 4)
      // 4,5,6,7     result.slice(4, 8)
      const pageSize = 4
      const total = Math.ceil(result.length / pageSize)
      for (let i = 0; i < total; i++) {
        // 切割成每份都有四个对象，后面每四个然后加四
        const item = result.slice(i * pageSize, i * pageSize + pageSize)
        // console.log(item)
        // 然后把分好的对象加到接收数据的数组里面去
        sliders.push(item)
      }
    })
    return { sliders }
  }
}
</script>

<style scoped lang="less">
.goods-relevant {
  background: #fff;
  min-height: 460px;
  margin-top: 20px;
 :deep(.xtx-carousel) {
  height: 380px;
  .carousel {
    &-indicator {
      bottom: 30px;
      span {
        &.active {
          background: @xtxColor;
        }
      }
    }
    &-btn {
      top: 110px;
      opacity: 1;
      background: rgba(0,0,0,0);
      color: #ddd;
      i {
        font-size: 30px;
      }
    }
  }
}
  .header {
    height: 80px;
    line-height: 80px;
    padding: 0 20px;
    .title {
      font-size: 20px;
      padding-left: 10px;
    }
    .icon {
      width: 16px;
      height: 16px;
      display: inline-block;
      border-top: 4px solid @xtxColor;
      border-right: 4px solid @xtxColor;
      box-sizing: border-box;
      position: relative;
      transform: rotate(45deg);
      &::before {
        content: "";
        width: 10px;
        height: 10px;
        position: absolute;
        left: 0;
        top: 2px;
        background: lighten(@xtxColor, 40%);
      }
    }
  }
}
</style>
